and send me a link so i can know how to do it too!
OK time for the idea of the scenario (which ill spearhead if youd like).
alright, so heres what i want. you know that solar system map? i want to take that (or make one based on it) and enlarge earth so that there is room for a few cities per civ approximately. (sword i know you know where this is going but ill keep saying it) and so for the game it progresses normally, with sea and all, but then for the future era, you can expand into space. this is how id do it. ill make the earth have "coast" and "sea" as the 2 terrains and the 3rd, what was ocean, will now be "Space" and will only be crossable by the later era naval/air units. i will add substantially to the "space colonization" tech and have "Mars colonization" as a tech, not a wonder, and also give "Martian Base" as a FP type small wonder that also has air transport/trade. i will have one for each planet (though maybe not the gas ones) with the same basic idea. ... now you may be wondering "but how do i reach the planets at first?" here the answer... "Space program" small wonder which produces a "Shuttle" every 7 turns, which carries a "stellar colonist" (has both foot unit and cruise missile checked, while shuttle has both of these flags checked, so only the shuttle can carry this unit.) and it is the first unit for a while that can cross the "new ocean" which is "space". i will want the colonist unit to also act as a worker, at least as far as cleaning pollution goes, and have the planets covered in pollution to simulate the need to terraform them (something with the terraforming tech maybe?) so initially only a few extra-terrestrial colonies will be founded and be able to be supported, but as time goes on, shuttles can be upgraded to "Stellar Bus" or something that is less expensive and carries more units, and the colonists can be upgraded to "Stellar Migrants" that allow you to transfer population to the colony and terraform the planet. though maybe the worker drones would still have this... for automated transport give "Mag Lev Line" as an improvement which doubles tax income, reduces pollution, and doubles defense.
Mars in particular (over all other planets/moons) will be best for colonies and will be able to support them best. I actuall want conquest of mars to be a wonder that requires "Northern Martian Pole" and "Southern Martian Pole" (preplaced resources) and requires "Martian Base" to be built so that only the civ that completely conquers mars can build this... and only on mars. i want the wonder to give a building to all cities on the continent (ie mars) that triples defense vs air, sea, and land in addition to the 2 free techs. this building could be called "Martian National Identity" or something hopefully better. all this is to set up the upcoming colony wars sword. when earth and mars will inevitable duel. the purpose of the huge defensive boost is that earth will undoubtedly have a massive advantage since mars will be freshly conquered and the mother civ will have been ousted from their capitol, so its a boost to the previous loser so that they can stand a chance. basically from this point on i want to have this game be about colonizing the solar system and fighting wars that are mostly naval in nature, though you do need land forces still to take cities. i was thinking that instead of having the Space Race be a race to alpha centuri, why not have it be a race to control the solar system? each "part" can be a different planet or major moon (Luna, Triton, Europa, etc.) and require the preplaced resource (which will be on that world) in order to be built. so that only when you control the solar system can you "Proclame a Stellar Empire" or something. i will want more improvements too such as "Biodome" which will act as a granary, "Artificial Park" which gives a happy face and allows city size 2 (to represent the positive impact of the recycled oxygen), and "Surface Mines" which double production... why build things like this you ask? simple! they require no resource! all of the older earth related things will require "Earth" (which each civ will have) in addition to iron or rubber or coal, so they can only be built on earth. the new improvements will require no resource so they may be built anywhere, ie on a planet that has no connection to earth and therefore cant build a "Granary" i have tons more ideas, but tell me what you think guys!